i think it is the same as on soul silver...
there is a settings thing on your pokegear, go to that. set it to the blue backround.
go to radio, use your stylus to move the dot that shows what channel you are on to the middle line of the blue circle, at the top. the channel should say poke Flute.
In Pokemon Crystal, to obtain the Poké Flute (which is what I assume you meant by "poke lullaby"), you need to first wake up Snorlax blocking the path on Route 11. You can do this by getting the Expansion Card from the radio station in Lavender Town and tuning your radio to the Poke Flute channel. Once Snorlax is awake, you can capture or defeat it to clear the path.
Go to lavender town and go inside the radio station and talk to the people in their and get an update to your radio and the pkeflute is playing on a station
To get the poke flute on silver you need to go to the radio tower in lavender city, talk to the man inside and he will upgrade the radio on the poke gear. You should then be able to find the poke flute radio broadcast.
it is on the top of the radio.
well your at digglets cave right, then go 2 radio in pokegear and set it 2 poke flute
In your radio, all you do is go to the top of your radio with the little dot and then it will say poke flute and then you can get that awsome snorlax that is blocking diglets cave. (but the poke-flute channel only works in Kanto not in Jhoto)
First Go to power plant and find thief. then go to Lavender city and get Poke flute app then go to radio press the top of circle and boom you've got poke flute
use the little circle and go to the top of the radio then you will here the poke flute
go to your radio and move the dot around until it says poke flute and the snorlax will attack you, I suggest you capture it.
There is no Poke Flute item in Pokemon Silver. Instead, the player can have their radio upgraded in Lavender Town. It will then play a station that can play the Poke Flute tune.
You go to snorlax and use the poke flute and you battle him (poke flute is on the raido at very top of map
Because this is 3 years after Gold, Silver, and Crystal, you can't. Instead, you go to the GoldenRod Radio Tower and go to the 3rd lady behind the counter, closest to the right. Anwser all the questions, and you will get a pokegear radio add on. Now go to Snorlax, then go on your pokegear radio, and look for the station called Poke-Flute. Get off it now and Poke-Flute should still be playing. Then talk to Snorlax.